I have a 2000 Carolla. The fan motor for the heater/air conditioner is making a lot of noise and is not blowing air into the passenger compartment. How difficult is it for a home attempt at fixing. Eg. Can I replace the heater motor or do I have to take it to a dealer. If I have to take it to a dealer what is the dealer cost to repair. Do you have a suggestion about other online resources.

start with using a meter to test for power start from fan back to switches need to check harness and connectors

check your blower motor under the passenger side of the dash, round plastic box three screws pull it out something might have fallen though your cowl and chewed up the fan blades. as for the ac your r-12 is probly empty or has a leak bring it to a local garage and have them flush and fill your cooling system. heater would be your thermostat not openig properly, by far your cheapest fix under ten dollar part.

Hello: Remove the blower motor and remove all the debris from the fan and compartment, also check the cowling where the air comes in, make sure it is clean.

Check the wire connections at the blower motor and fan resistor, they are located under dash on passenger side. They sometimes have corrosion that burns the plastic connector. The resistor is responsible for all fan speeds below high. Hope this helps, let me know.

Sounds like you need to replace the blower motor or something might be stuck in the fan of the blower motor.

Yeah there is a fuse under the dash board on the driver side. But if you take it out your heater and air conditioner want work. you can remove the dash panel on the passenger side and oil the blow motor and it will not make it noise.

Coolant will not make a clicking noise. Intermittant clicking that changes frequency with fan speed is usually a fan motor, common symptom

While parked with the hood raised, start the engine and turn on your a/c. Check to make sure your cooling fans are running. If they are, I would look into the blower motor for the passenger compartment blower. This is what causes the air to enter the vehicle. You could have a damper door that is not allowing it to blow into the passenger compartment as well.

Most likely it does, if you can hit the motor and it will run. I can't say for sure but you might want to chk. to see if you got a heater blower motor resister. There located (if its got one) around the heater motor and it controls blower speeds, might be worth checking out.